From Roland Smeenk, "this submission adds a "Fast Drawable" line to the camera scene statistics.

It shows the total number of sorted and unsorted drawables that use the fastpath for rendering."

include/osgUtil/Statistics

@@ -102,6 +102,7 @@ class OSGUTIL_EXPORT Statistics : public osg::PrimitiveFunctor
         virtual void end();
         
         void addDrawable() { numDrawables++;}
+        void addFastDrawable() { numFastDrawables++;}
         void addMatrix() { nummat++;}
         void addLight(int np) { nlights+=np;}
         void addImpostor(int np) { nimpostor+= np; }
@@ -126,6 +127,7 @@ class OSGUTIL_EXPORT Statistics : public osg::PrimitiveFunctor
         PrimitiveCountMap::iterator GetPrimitivesEnd() { return _primitives_count.end(); }
 
         int numDrawables, nummat, nbins, numStateGraphs;
+        int numFastDrawables;
         int nlights;
         int depth; // depth into bins - eg 1.1,1.2,1.3 etc
         int _binNo;